Home / 3,738.36-5,157.90-2,412.12

Finding the Fourth Proportional to 3,738.36, 5,157.90 and 2,412.12

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Solution

The fourth proportional to 3,738.36, 5,157.90 and 2,412.12 is: 3,328.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.36 : 5,157.90 = 2,412.12 : x
  2. Step 2: Convert to fraction form
    3,738.36/5,157.90 = 2,412.12/x
  3. Step 3: Cross multiply
    3,738.36x = 5,157.90 × 2,412.12
  4. Step 4: Simplify right side
    3,738.36x = 12,441,473.75
  5. Step 5: Solve for x
    x = 12,441,473.75/3,738.36
  6. Step 6: Final answer
    x = 3,328.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.